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Full text of "San Francisco Electrical Code"

NOTICE TO SUBSCRIBERS 

CITY AND COUNTY OF SAN FRANCISCO 
ELECTRICAL CODE, 2007 EDITION 

This Code includes amendments approved through 

November 6, 2007. 




AMERICAN LEGAL PUBLISHING CORPORATION 



432 Walnut Street Cincinnati, Ohio 45202-3909 (800)445-5588 



SAN FRANCISCO, CALIFORNIA 
2007 ELECTRICAL CODE 

January 2008 Supplement — Instruction Sheet 

Enclosed with this instruction sheet are new and replacement pages for your loose-leaf copy of the 
Electrical Code, bringing the code current through November 6, 2007. In order to keep your copy of the 
code up to date, you must remove the following indicated obsolete pages from your code and replace 
them with the indicated revised pages. The footer appearing at the lower alternating comer of each page 
revised in this package is "1/01/2008." If you have any questions, please contact American Legal 
Publishing at 1-800-445-5588. 



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CITY AND COUNTY OF 
SAN FRANCISCO 

ELECTRICAL CODE 
2007 Edition 



[Includes legislation adopted by the Board of Supervisors 
through November 6, 2007.] 




AMERICAN LEGAL PUBLISHING CORPORATION 



432 Walnut Street Cincinnati, Ohio 45202-3909 (800) 445-5588 



Copyright © 2008 

by 

THE CITY AND COUNTY OF SAN FRANCISCO 
A Municipal Corporation 



All rights reserved. No part of this publication may be 
reproduced or distributed by any means or stored in a 

database or retrieval system without prior written 
permission of the City and Count)' of San Francisco. 



PUBLISHER'S NOTE 



The full 2007 San Francisco Electrical Code consists of the 2005 National Electrical Code, as amended 
by the 2007 California Electrical Code, and as further amended by these San Francisco amendments. 

The San Francisco Electrical Code amendments contained herein are designed to be used in 
conjunction with the 2007 California Electrical Code. 

The San Francisco Electrical Code amendments contained herein were adopted by the Board of 
Supervisors of the City and County of San Francisco on November 6, 2007, by Ordinance 257-07, Effective 
January 1,2008. 



2007 California Electrical Code 

(Which incorporates the 2005 National 

Electrical Code) 



+ 



Complete San Francisco 
Electrical Code 



2007 San Francisco Amendments 



Supplements to this Code and complete copies of all five 

Building Inspection Commission (BIC) Codes 

(Building, Electrical, Housing, Mechanical and Plumbing) 

can be ordered from: 

AMERICAN LEGAL PUBLISHING CORPORATION 

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PREFACE 



The San Francisco amendments to the 2007 California Electrical Code appear in boldface to 
distinguish the San Francisco amendments from the provisions of the 2007 California Electrical Code 
which they amend. To further simplify use of the San Francisco amendments with corresponding sections 
of the 2007 California Electrical Code, explanatory remarks appearing in italics are provided at the 
beginning of each amendment indicating whether the San Francisco amendment to the 2007 California 
Electrical Code is adding, revising, or replacing a section or portion of a section. 



Marginal Markings: 

■^ An arrow represents the location of language that has been deleted by San Francisco from the 2007 
California Electrical Code. 

I A solid line represents a change from the original published edition of the 2007 San Francisco 
Electrical Code. 



Historical Notations: 

Language which has been added, amended, or deleted from the 2007 publication of the San Francisco 
Electrical Code is indicated with an historical notation, setting forth the ordinance number and date of 
adoption. 



2007 SAN FRANCISCO ELECTRICAL CODE TABLE OF CONTENTS 

TABLE OF CONTENTS 

Article 89 General Code Provisions 1 

Chapter 1 General 8 

Article 100 Definitions 8 

Article 110 Requirements for Electrical Installations 8 

Chapter 2 Wiring and Protection 9 

Article 210 Branch Circuits 9 

Article 220 Branch-Circuit, Feeder and Service Calculations 9 

Article 230 Services 9 

Article 250 Grounding 11 

Chapter 3 Wiring Methods and Materials 12 

Article 300 Wiring Methods , 12 

Article 320 Armored Cable: Type AC 12 

Article 330 Metal-Clad Cable: Type MC 12 

Article 334 Nonmetallic-Sheathed Cable: Types NM, NMC, and NMS 12 

Article 340 Underground Feeder and Branch-Circuit Cable: Type UF 13 

Article 348 Flexible Metal Conduit: Type FMC 13 

Article 350 Liquidtight Flexible Metal Conduit: Type LFMC 13 

Article 352 Rigid Nonmetallic Conduit: Type RNC 13 

Article 356 Liquidtight Flexible Nonmetallic Conduit: Type LFNC 13 

Article 358 Electrical Metallic Tubing: Type EMT 13 

Article 362 Electrical Nonmetallic Tubing: Type ENT 14 

Article 378 Nonmetallic Wireways 14 

Article 388 Surface Nonmetallic Raceways 14 

Chapter 4 Equipment for General Use 15 

Article 410 Luminaires (Lighting Fixtures), Lampholders, and Lamps 15 

Article 411 Lighting Systems Operating at 30 Volts or Less 15 

Chapter 5 Special Occupancies 16 

Chapter 6 Special Equipment 17 

Article 645 Information Technology Equipment 17 

Chapter 7 Special Conditions 18 

Article 700 Emergency Systems 18 

Article 760 Fire Alarm Systems 18 

Chapter 8 Communications Systems 20 



1/01/2008 



TABLE OF CONTENTS 2007 SAN FRANCISCO ELECTRICAL CODE 

Chapter 9 Tables and Examples 21 

San Francisco Electrical Code Index I-l 



1/01/2008 



2007 SAN FRANCISCO ELECTRICAL CODE 



89.10L1 -89.118 



1^ ARTICLE 89 - GENERAL CODE PROVISIONS 89.117. Add the following new section: 



89.101. 1. Replace the first sentence of this section with 
the following: 

89. 1 1 . 1 . Title. The provisions contained in this 
Code shall be known as the 2007 San Francisco 
Electrical Code, and may be cited as such and 
will be referred to as "this code". 

89.115. Add the following new section: 

89.115. Suppression: This code shall supersede all 
previous Electrical Codes and ordinances in the 
City and County of San Francisco. Nothing herein 
shall require the revision of electrical installation 
plans submitted prior to the adoption date of this 
code. Electrical permits obtained prior to the 
effective date of this code shall comply with the 
provisions of the Electrical Code, ordinances, 
regulations and rulings in effect when the permit 
was granted. 

89.116. Add the following new section: 

89.116. Maintenance. All electrical equipment, 
wiring and systems and installations shall be 
maintained in a safe operating and code-complying 
condition. The owner or the owner's designated 
agent, or both, shall be legally responsible for the 
maintenance of all electrical wiring systems and 
installations. 

Nothing contained in this code shall be 
construed to require any existing electrical 
equipment, wiring or systems regulated by this 
code to be altered, reconstructed, removed or 
demolished, providing such existing electrical 
equipment, wiring or system was installed and 
maintained in accordance with the adopted code in 
effect at the time of installation or subsequent 
alteration. 

Unused conductors and cables shall be either 
removed or suitably identified and terminated in an 
approved manner. 



89.1 17. Alternate Materials, Design and Methods of 
Construction. 

(A) Alternates Require Approval: The 
provisions of this code are not intended to prevent 
the use of a product or method of construction not 
specifically prescribed by this code, provided any 
such alternate has been approved and the use 
authorized by the Building Official. 

(B) Equivalency of Alternates. The Building 
Official may authorize an alternate, provided the 
Building Official finds the proposed design is 
satisfactory for the intended use and complies with 
the provisions of this code and that the product, 
method or work offered is, for the purpose 
intended, at least equivalent to that prescribed by 
this code in suitability, strength, effectiveness, fire 
resistivity, durability and safety. 

(C) Evidence Required. The Building Official 
shall require sufficient evidence or proof be 
submitted to substantiate any claims made 
regarding the use of alternates. The details of any 
action granting approval of an alternate shall be 
recorded and shall be entered in the files of the 
Department of Building Inspection. 

(D) Conditions and Fees. See Building Code 
Section 104A.2.8 for conditions and Section llOA, 
Table lA-J — Miscellaneous Fees — for applicable 
fees. 

89. 118. Add the following new section: 

89.118. Change in Occupancy. Electrical 
equipment, wiring and systems which are part of 
any building or structure, or portion thereof, 
undergoing a change in occupancy or use, as defined 
in the Building Code, shall comply with all 
requirements of this code which may be applicable 
to the new occupancy or use. 



1/01/2008 



89.118-89.120 



2007 SAN FRANCISCO ELECTRICAL CODE 



Exception: The provisions of this section shall 
not require the change of existing electrical 
equipment, wiring and systems where such 
electrical equipment, wiring and systems are 
deemed adequate for the new occupancy 
involved. 

89.119. Add the following new section: 

89.119. Modifications. When there are practical 
difficulties involved in carrying out the provisions of 
this code, the Building Official may grant 
modiflcations for individual cases. The Building 
Official shall first find that a special individual 
reason makes the strict letter of this code 
impractical and that the modification is in 
conformance with the intent and purpose of this 
code and that such modification does not lessen 
health, life-safety and fire-safety requirements. The 
details of any action granting modifications shall be 
recorded and entered in the files of the Department 
of Building Inspection. 

89. 120. Add the following new section: 
89.120. Permits Required. 

(A) General. It shall be unlawful for any 
person to install, construct, alter, move, add to or 
replace any electrical installation regulated by this 
code, except as permitted in Section 89.121, without 
first obtaining a permit from the Department of 
Building Inspection. 

(B) Nonliability of City and County of San 
Francisco. Permits issued under the provisions of 
this code shall contain or be construed to contain an 
agreement by the owner of the building, structure 
or premises, or the owner's authorized agent, to 
save City and County of San Francisco officials and 
employees harmless from all costs, liability and 
damages resulting, whether directly or indirectly, 
from anything in connection with the work included 
in the permit, including equipment, methods of 
construction, inspections and approvals. 



(C) Application For Permit. Permit applicants 
shall file with the Department of Building 
Inspection an application form furnished for that 
purpose. The permit application shall show a 
complete itemization of the proposed electrical 
installation and the correct address of the job site. 
Electrical permits may be issued to duly licensed 
contractors who have registered with the Central 
Permit Bureau by having their state contractor's 
license veriiled by the Department of Building 
Inspection, or issued to a homeowner subject to 
Section 89.120(E). A separate permit shall be 
obtained for each separate building or structure. 

See Section llOA, Table lA-E - Electrical 
PermJlt Fees - of the Building Code for the 
applicable fees. 

(ID) Illegal Use of Permit. No person, firm, 
corporation, or state licensed contractor shall file an 
application for a permit to install any electrical 
wiring system unless such person, firm, corporation, 
or state licensed contractor shall perform such 
work. The Building Official or the Building 
Official's authorized representative shall have the 
authority to cancel any permit upon finding that it 
is contrary to this section. The permittee shall be 
responsible for all work performed. 

(E) Homeowner's Permit. A permit for 
electrical work in or about a single-family dwelling 
may be issued by the Building Official to a 
homeowner, provided the work to be done will be 
performed by the homeowner. If the electrical work 
performed under the homeowner's permit does not 
comply with the requirements of this code and if the 
corrections are not made as required by the 
Department of Building Inspection, then the 
deficiencies shall be corrected by a State licensed 
electrical contractor under a separate permit. 

(¥) Emergency Work. Emergency electrical 
work for the protection of persons or property shall 
have a permit obtained within one business day of 
commencing such work. 



1/01/2008 



2007 SAN FRANCISCO ELECTRICAL CODE 



89.121-89.122 



89. 121. Add the following new section: 

89.121. Work Exempt from Permits. Electrical 
permits and fees shall not be required for the 
following: 

(A) Repair or replacement of luminaires 
where: 

(1) the luminaire(s) are not installed to 
provide emergency illumination required by San 
Francisco Building Code, and 

(2) no change in existing wiring is 
involved, and 

(3) luminaires weigh 22.68 Kg (50 
pounds) or less. 

(B) Repair or replacement of a domestic 
appliance where no change in existing wiring is 
involved. 

(C) Replacement of fuses, controls, motors of 
less than 2 horsepower, and switches and 
receptacles of not more than 20 amperes rating, 
where no change in existing wiring is involved. 

(D) Replacement of circuit breakers, 
externally operated switches and fuse holders of the 
same type and rating as the defective unit or 
component, if not rated in excess of 100 amperes. 

Exception: Replacement of main service 
disconnecting means are subject to permit and 
inspection regardless of rating. 

(E) Wiring for temporary theater stages and 
platforms, motion picture and television studio sets 
supplied from approved electrical outlets installed 
for the purpose. 

(F) Replacement of component parts for 
electric signs or gas-tube lighting systems of the 
same size and rating. 



89. 122. Add the following new section: 
89.122. Permit Issuance. 

(A) General. An issued permit entitles the 
permittee to proceed with the installation described 
therein. Work done in excess of that shown on the 
application will be subject to extra permit fees as set 
forth in Section llOA, Table lA-F - Specialty 
Permit Fees - of the Building Code. The issuance of 
a permit does not constitute an approval or an 
authorization of the work specified therein. 
Neither the issuance of a permit, nor the approval 
by the Building Official of any document, shall 
constitute an approval of a violation of any 
provision of this code or any law or ordinance. A 
permit or other document purporting to give 
authority to violate any code, law or ordinance shall 
not be valid with respect thereto. Permits shall not 
be transferable. Proposed electrical installations 
delineated on a permit application shall be 
performed only by the permittee or bona fide 
employee thereof in accordance with the California 
Code of Regulations, Title 8, Chapter 2, Part IV. 
The permit shall be posted on the job site where the 
work is to be done. 

(B) Expiration of Permit. Electrical permits 
expire after 90 days from date of issue, or date of 
last recorded inspection, unless an extension of time 
is granted by the Building Offlcial. Only one 90-day 
extension may be granted. Permit extension and 
cancellation requests shall be made in writing to the 
Building Official by the permit holder. Permit fees 
may be refunded if cancellation request is made 
prior to commencement of the permitted work and 
within 90-days of the issue date, otherwise, the 
permit fees shall be retained by the Department of 
Building Inspection. See Section llOA, Table lA-R 
- Refunds - of the Building Code for refund. 

(C) Commencement of Work on Permit 
Expired Due to Work Not Started. Before work may 
be commenced on an expired permit on which no 
work was performed, a new permit shall be 
obtained. 



1/01/2008 



89.122-89.124 



2007 SAN FRANCISCO ELECTRICAL CODE 



(D) Recommencement of Work on Permit 
Expired Due to WorkNot Completed. The applicant 
shall secure a new permit for the work not 
completed. The permit fee shall be based upon items 
or work remaining to be done. 

(E) Cancellation of Permit: Permits may be 
canceled by the Building Official: 

(1) If after inspection, it is judged by a 
senior inspector that the permit holder is unable or 
unwilling to correct an unsafe condition or Code 
violations. 

(2) If the permit was obtained 
fraudulently or under false pretenses. 

89. J 23. Add the following new section: 

89.123. Fees 

(A) General. Permit and inspection fees, as set 
forth in Section llOA, Table lA-E - Electrical 
Permit Fees — of the Building Code, shall be paid 
prior to permit issuance. When additional permit or 
inspection fees are due, they shall be payable prior 
to issuance of Permission to Connect Current, 
Certificate of Occupancy, or Declaration of 
Inspection. 

(B) Other Fees. A standard hourly inspection 
fee shall be charged for services provided by 
Electrical Inspection Division personnel which are 
not otherwise detailed. See Section llOA, Table 
lA-G - Inspections, Surveys and Reports - of the 
Building Code. 

(C) Work Without Permit - Investigation Fee. 
If the Building Official finds that a person, company 
or entity has performed electrical installation work 
for which a permit is required, without first 
obtaining an electrical permit and payment of fees, 
the Building Official shall require the payment of 
an investigative fee in addition to the prescribed 
permit fee. See Section llOA, Table lA-K - 
Penalties, Hearings, Code Enforcement 
Assessments - of the Building Code for the 
applicable fees. The payment of such investigation 
fee shall not exempt any person from compliance 



with all other provisions of this Code, nor from any 
penalty prescribed by law. The Building Official 
may reduce the investigation fee to two times the 
amount of the permit fee as called for in Section 
llOA, Table lA-E - Electrical Permit Fees - of the 
Building Code for work that was constructed prior 
to the current building ownership if the owner files 
with the Building Official notarized affidavit 
together with documents substantiating such dates 
of work. 

Appeal of such investigative fee may be filed 
with the Board of Appeals in the manner provided 
in Pairt HI of the San Francisco Municipal Code. 
Such filing shall be subject to the fees and rules of 
the Board of Appeals. The Board of Appeals, in 
reviewing the appeal may reduce the appealed 
amount to not less than two times (2x) the permit 
fee as set forth in Section llOA, Table lA-E - 
Electrical Permit Fees ~ of the Building Code. 

89. 124. Add the following new section: 

89.124. Powers and Duties of the Building Official. 

(A) General. The Building Official is hereby 
authorized and directed to enforce all the provisions 
of this code. For such purposes, the Building 
Official shall have the powers of a law enforcement 
officer. The Building Official, when necessary, may 
call upon the Police Department and other city 
agencies for aid or assistance in carrying out or 
enforcing any of the provisions of this code. 

(B) Right of Entry. When it is necessary to 
make an inspection to enforce the provisions of this 
code or other codes or ordinances, or when the 
Building Official has reasonable cause to believe 
that there exists in a building or upon a premises a 
conditiion that is contrary to, or in violation of, this 
code or other codes or ordinances that makes the 
building or premises unsafe, dangerous or 
hazardous, the Building Official may enter the 
building or premises at reasonable times to inspect 
or to perform the duties imposed by this code or 
other codes or ordinances, provided that if such 
building or premises be occupied, credentials be 
presented to the occupant and entry requested. If 
such building or premises be unoccupied, the 



1/01/2008 



2007 SAN FRANCISCO ELECTRICAL CODE 



89.124 



Building Official shall first make a reasonable effort 
to locate the owner or other person having charge 
or control of the building or premises and request 
entry. If entry is refused, the Building Official shall 
have recourse to the remedies provided by law to 
secure entry. 

(C) Stop Orders. Whenever any work is being 
done contrary to the provisions of this code, or 
other pertinent laws or ordinances implemented 
through the enforcement of this code, the Building 
Official may order the work stopped by notice in 
writing served on any persons engaged in the doing 
or causing such work to be done, and any such 
persons shall forthwith stop such work until 
authorized by the Building Official to proceed with 
the work. 

(D) Temporary Use of Electrical Energy. The 
Building Official may permit the temporary use of 
electrical energy by any person, firm or corporation 
in cases where it does not create a hazard to life or 
property. 

(E) Building Official may adopt rules and 
regulations. The Building Official shall have the 
power to render interpretations of this code and to 
adopt and enforce rules and supplemental 
regulations to clarify the application of its 
provisions. Such interpretations, rules and 
regulations shall be in conformance with the intent 
and purpose of this code. Such rules and 
regulations, commonly referred to as Code Rulings 
and Administrative Bulletins, supplemental to this 
code, shall not take effect until approved by the 
Building Inspection Commission and signed by the 
Building Official except in unusual circumstances 
where the Building Official has determined there is 
an immediate need to protect the public health and 
safety. When the Building Official finds that such 
circumstances exist, the Building Official may order 
immediate enforcement of a particular rule or 
regulation. The Building Official shall arrange for 
a subscription service to such rules and regulations, 
the entire cost of which is to be borne by the 
subscribers. 

(F) Code Revisions. The Building Official 
shall transmit to the Building Inspection 



Commission, at intervals not exceeding three years, 
recommendations for changes to this code, based on 
studies of the following: 

(1) Requests of the Board of Examiners 
for variances from this code, and for approvals of 
alternate materials, alternate designs and methods 
of construction. 

(2) Code changes recommended by the 
Board of Examiners. 

(3) Code changes recommended by the 
Code Advisory Committee or other bodies 
subordinate to the Building Inspection Commission. 

(4) Results obtained and problems 
encountered from legal actions taken to correct code 
violations. 

(5) Changes or improvements in 
materials, methods of construction or design, and 
changes proposed by interested persons. 

(6) Investigations of fire and structural 
damage to buildings, and of complaints of 
unsatisfactory electrical system performance. 

(7) Periodic changes to the California 
Electrical Code and other State regulations which 
may affect this code. 

(8) Administrative Bulletins and Code 
Rulings currently in effect. 

(9) Violations of this code found on 
inspections and investigations. 

(G) Disconnection of Electric Service due to 
Serious and Imminent Hazards. The Building 
Official shall have the authority to disconnect 
electric service to a building, structure, property or 
equipment regulated by this code when it is 
necessary to abate a serious and imminent hazard to 
the life, health or safety of the occupant or other 
persons, or such building, structure or property. See 
Section 102 A of the Building Code. Persons shall not 
reconnect such electrical supply until authorized in 
writing by the Building Official. 



1/01/2008 



89.125-89.127 



2007 SAN FRANCISCO ELECTRICAL CODE 



89. J 25. Add the following new section: 

89.125. Violation. 

Any person, the owner or the owner's 
authorized agent, who violates, disobeys, omits, 
neglects, or refuses to comply with, or resists or 
opposes the execution of any of the provisions of this 
code, shall be liable for a civil penalty, not to exceed 
$500 for each day such violation is committed or 
permitted to continue, which penalty shall be 
assessed and recovered in a civil action brought in 
the name of the people of the City and County of 
San Francisco by the City Attorney in any court of 
competent jurisdiction. Any penalty assessed and 
recovered in an action brought pursuant to this 
paragraph shall be paid to the City Treasurer and 
credited to the Department of Building Inspection's 
Special Fund. 

Any person, the owner or the owner's 
authorized agent, who violates, disobeys, omits, 
neglects, or refuses to comply with, or who resists or 
opposes the execution of any of the provisions of this 
code, shall be guilty of a misdemeanor, and upon 
conviction thereof shall be punished by a fine not 
exceeding $500, or by imprisonment not exceeding 
six months, or by both such fine and imprisonment, 
unless otherwise provided in this code, and shall be 
deemed guilty of a separate offense for every day 
such violation, disobedience, omission, neglect or 
refusal shall continue. Any person who shall do any 
work in violation of any of the provisions of this 
code, and any person having charge of such work 
who shall permit it to be done, shall be liable for the 
penalty provided. 

It shall be unlawful for any person to interfere 
with the posting of any notice provided for in this 
code, or to tear down or mutilate any such notice so 
posted by the Department of Building Inspection. 

89. 126. Add the following new section: 

89.126. Unsafe Buildings or Structures. 

Any buildings, structures, or parts thereof, 
shall be considered unsafe when any of the 
following conditions are present: 



(A) Electrical equipment, wiring and systems 
deemed hazardous to human life or structure safety; 

(]B) Electrical equipment, wiring and systems 
that are in violation of the code that was in effect at 
the time of construction or installation or such work 
was performed without permit or approval; 

(C) Change in occupancy without complying 
with the provision of Section 089.118 of this code. 

Such unsafe building, structure, property or 
portion shall be vacated, repaired, altered or 
demollished in accordance with Section 102 A of the 
Building Code. 

89. 127. Add the following new section: 

89.127. Inspection. 

(A) General. All electrical equipment, wiring 
and systems, regulated by this code and for which a 
permit is required shall be subject to inspection to 
insure compliance with this code. Upon the 
completion and final approval of the permitted 
installation and payment of all permit and 
inspection fees, a Declaration of Inspection shall be 
issued. Said declaration shall indicate in concise 
terms the electrical installation thus approved and 
the date of approval. 

(B) Unlawful Use of Electrical Energy. It shall 
be unlawful to energize an electrical installation in, 
on or about any building, structure or property in 
the City and County of San Francisco unless a 
Certificate to Connect Current (Green Tag) has 
been issued. The Certificate to Connect Current 
authorizes the owner of the structure to energize the 
permiitted installation. 

(C) Inspection Requests. It shall be the 
responsibility of the permit holder to notify the 
Electrical Inspection Division orally or in writing 
when the permitted installation will be ready for 
inspection. Such notification shall be given at least 
24 hours before any inspection is desired. 
Inspections may be performed outside of normal 
inspection hours by prior arrangement and 
prepayment. See Section llOA, Table lA-G - Off 



1/01/2008 



2007 SAN FRANCISCO ELECTRICAL CODE 



89.127-89.129 



hours Inspections - of the Building Code for the 
applicable fees. 



(D) Required Inspections, 
inspections shall include: 



Required 



(1) Pre-Cover Inspection. Electrical 
equipment, wiring and systems authorized by 
permit shall be inspected for code compliance prior 
to covering or concealing. 

(2) Final Inspection. Final inspection and 
demonstration of satisfactory operation shall be 
made after the installation authorized by permit has 
been completed. 

(3) Other Inspection. As may be required 
to insure compliance with the provisions of this 
code. 

(£) Electrical Wiring or Installation Unlawful 
to Conceal. It shall be unlawful to conceal, cover, 
or put into use electrical wiring, installations, or 
parts thereof, until such has been inspected and 
accepted as prescribed in this code. Whenever such 
work is concealed or covered before first having 
been inspected and approved, or whenever electrical 
wiring or systems are installed and concealed or 
covered without a permit, the Building Official may 
require, by written notice to the responsible 
person(s) that such wiring or installation be exposed 
for inspection. The work of exposing and 
reconstructing portions of a structure for such work 
shall not entail expense to the City and County of 
San Francisco or any of its officials or employees. 

(F) Reinspections. Reinspections shall be 
required when any of the following conditions 
occurs: 

(1) When the portion of the work for 
which inspection is requested is incomplete or not 
code complying. 

(2) When previously identified 
deficiencies in the work are not properly corrected. 

(3) When the approved construction 
documents are not available to the inspector. 



(4) When access is not provided on the 
date and time of the inspection appointment. 

(5) When there are deviations from the 
approved construction documents. 

The first reinspection for failure to comply 
with code requirements shall not be assessed a re- 
inspection fee. All subsequent reinspections on a job 
for the same or subsequent errors or omissions shall 
be charged with a reinspection fee. A Certificate of 
Final Completion and Occupancy or final approval 
shall not be granted until the required fees are paid. 
See Section llOA, Table lA-G - Inspections, Surveys 
and Reports - of the Building Code for applicable 
reinspection fees. 

89. 128. Add the following new section: 

89.128. Survey. An electrical survey may be 
requested when an electrical inspector's assistance 
is desired to establish code compliance of existing or 
proposed electrical equipment, wiring and 
installations. See Section llOA, Table lA-G of the 
Building Code for applicable fees. 

89. 129. Add the following new section: 

89.129. Board of Examiners. 

Application may be made to the Board of 
Examiners for approval of alternate materials, 
methods and types of construction and for variances 
from the provisions of this code. See Building Code, 
Section 105A.1. 



1/01/2008 



100-110.26 



2007 SAN FRANCISCO ELECTRICAL CODE 



Chapter L General 



ARTICLE 100 - DEFINITIONS 

100. Scope. Add a third paragraph at the end of this 
section: 

Where terms, phrases and words are not 
defined, they shall have the same meaning as 
provided in the Building Code or shall have their 
ordinary accepted meanings within the context with 
which they are used. 

1. General. Add the following new definitions: 

Different System: A system which derives its 
supply from a different source, such as from 
different sets of service entrance conductors, 
separate utility metered conductors, individual 
transformers or banks of transformers which do not 
have their secondary windings interconnected. 

Opening: An opening is: 

(1) An electrical outlet supplying current 
to switches, controllers, convenience receptacles, 
lighting fixtures, fixed appliances, motors or other 
utilization equipment; 

(2) A power source including utility 
company service entrances, a generator or battery 
system; or 

(3) An item of distribution equipment 
including a switchboard, panelboard, motor control 
center, or transformer. 

Subject to Physical Damage. Wiring installed 
within 2.44 m (8 feet) of a walking surface or 
finished floor is considered subject to physical 
damage. 



^JRTICLE 110 - REQUIREMENTS FOR 
ELECTRICAL INSTALLATIONS 

110. 15. Revise this section as follows: 

110.15 High-Leg Marking. On a 4-wire, 
delta-connected system where the midpoint of one 
phase winding is grounded, only the conductor or 
busbar having the higher phase voltage to ground shall 
be durably and permanently marked by an outer finish 
that is purple in color or by other effective means. ^ 
Such identification shall be placed at each point on the 
system where a connection is made if the grounded 
conductor is also present. Identification of 
ungrounded feeder conductors shall comply with 
Section 210-5(C). 

110.26(A). Revise this section as follows: 

(A) Working Space. Working space for 
equipment operation at 600 volts, nominal, or less to 
ground and likely to require examination, adjustment, 
servicing, or maintenance while energized shall be 
level and comply with the dimensions of 1 1 0.26(A)( 1 ), 
(A)(2), and (A)(3) or as required or permitted 
elsewhere in this Code. 

110.26(B). Revise this section as follows: 

(B) Clear Spaces. Working space required by 
this section shall not be used for storage. When 
normally enclosed live parts are exposed for inspection 
or servicing, the working space, if in a passageway or 
general open space, shall be suitably guarded. The 
standing area of the workspace shall be level. 

110.26(E). Delete the exception as follows: 

(E) Headroom. The minimum headroom of 
working spaces about service equipment, switchboards, 
panelboards or motor control centers shall be 2.0 m 
(6-1/2 ft). Where the electrical equipment exceeds 2.0 
m (6-1/2 ft) in height, the minimum headroom shall not 
be less than the height of the equipment. ^ 



1/01/2008 



2007 SAN FRANCISCO ELECTRICAL CODE 



210.5-230.43 



Chapter 2. Wirimg and Protection 



ARTICLE 210 — BRANCH CIRCUITS 

210.5(C). Revise this section as follows: 

■ 210.5(C). Ungrounded Conductors. Each ungrounded 
conductor of a branch circuit, where accessible, shall 
be identified by system. The means of identification 
shall be permitted to be by separate color coding, 
marking tape, tagging, or other approved means, and 
shall be permanently posted at each branch-circuit 
paneiboard or similar branch-circuit distribution 
equipment. 

Conductor insulation shall contain continuous 
color pigment for circuit wire #14 AWG through 
#10 AWG. Ungrounded conductors #8 AWG and 
larger and ungrounded conductors of any size in 
cable assemblies may be suitably identified at pull 
junction and outlet boxes. 

Conductor insulation shall be: 

(1) 120/240 volt 3-wire circuits - "A" 
phase black, "B" phase red; 120/208 volt 4-wire 
3-pha$e wye circuits - "A" phase black, "B" phase 
red, "C" phase blue; 120/240 volt 3-phase delta 
circuits - "A" phase black, "B" (high leg) phase 
purple, "C" phase red; 277/480 volt 4-wire 3-phase 
wye circuits - "A" phase brown, "B" phase orange, 
"C" phase yellow. Ungrounded conductors for other 
voltages shall be identified by different color coding, 
marking tape, tagging, or other approved means. 

See Section 200.7 for limitations on 
re-identification of white or grey conductors. 

(2) Conductors for switch legs may be of 
a different color than the ungrounded circuit 
conductor when suitably identified at pull, junction 
and outlet boxes with marking tape, tagging or 
other equally effective means. The color green, 
white or grey shall not be used for identification. 

Exception: Extensions of existing non-color 
coded wiring systems need not be color coded. 



ARTICLE 220 - BRANCH-CIRCUIT, FEEDER 
AND SERVICE CALCULATIONS 

220.87. Revise the exception to Item (1) as follows: 

220.87. Determining Existing Loads. 

( 1 ) The maximum demand data is available 
for a 1 -year period. 

Exception: If maximum demand data for a 
one-year period is not available, the calculated 
load shall be permitted to be based on the 
maximum demand (measure of average power 
demand over a fifteen-minute period) 
continuously recorded over a minimum thirty day 
period using a recording ammeter or power meter 
connected to the highest loaded phase of the 
feeder or service, based on the initial loading at 
the start of the recording. The recording shall 
reflect the maximum demand of the feeder or 
service by being taken when the building or space 
is occupied and shall include by measurement or 
calculation the larger of the heating or cooling 
equipment load, and other loads that may be 
periodic in nature due to seasonal or similar 
conditions. The method of recording and the 
demand conditions shall be approved by the 
Department prior to implementation. 



ARTICLE 230 - SERVICES 

230.43. Revise this section as follows: 

230.43. Wiring Methods for 600 Volts, Nominal, or 
Less. 

(A) General. Service-entrance conductors shall 
be installed in accordance with the applicable 
requirements of this Code covering the type of wiring 
method used and shall be limited to the following 
methods: 

(1) Reserved; 



1/01/2008 



230.43-230.71 



2007 SAN FRANCISCO ELECTRICAL CODE 



i^ (2) Reserved; 

(3) Rigid metal conduit; 

(4) Intermediate metal conduit; 
^ (5) Reserved; 

^ (6) Reserved; 

i^ (7) Reserved; 

^ (8) Reserved; 

(9) Busways; 

(10) Auxiliary gutters; 

(11) Rigid non-metallic conduit; 
W (12) Reserved; 

^ (13) Reserved; 

( 1 4) Mineral-insulated, metal sheathed cable; 

^ (15) Reserved; 

■► (16) Reserved. 

(B) Raceway Size. Minimum raceway size 
shall comply with the following: 

(1) Except as provided in Section 
230.43(B)(2) and (3) the minimum size raceway 
installed for service entrance conductor shall be 
1 1/4 inch (31.8 mm). 

(2) Raceways for service entrance 
conductors for sign or billboard lighting shall not be 
smaller than 3/4 inch (19.1 mm) conduit. 

(3) Installations consisting of not more 
than two 2-wire branch circuits may be supplied by 
No. 8 conductors in 3/4 inch (19.1 mm) conduit. 



Exception: New service entrance conductors 
may be repulled in previously approved service 
raceways, provided the installation complies 
vi'ith the requirements of SFEC Section 89.116 
and Chapters 1, 2 and 3. 

(FPN): Refer to electric utility server 
requirements for raceway sizes. 

230.56. Revise this section as follows: 

230.56. Service Conductor with the Higher Voltage to 
Ground. On a four-wire delta-connected service where 
the midpoint of one phase winding is grounded, the 
service conductor having the higher phase voltage to 
ground shall be durably and permanently marked by an 
outer finish that is purple in color, or by other effective ^ 
means, at each termination or junction point. 

230. 71(A). Revise this section and add an exception as 
follows: 

230.71 Maximum Number of Disconnects. 

(A) General. The service disconnecting means for 
each service permitted by 230.2, or for each set of 
service-entrance conductors permitted by 230.40, 
Exception Nos. 1, 3, 4, or 5, shall consist of a single ^ 
circuit breaker or switch and set of fuses. For the 
purpose of this section, disconnecting means used 
solely for power monitoring equipment, transient 
voltage surge suppressors, or the control circuit of the 
ground-fault protection system or power-operable 
service disconnecting means, installed as part of the 
listed equipment, shall not be considered a service 
disconnecting means. 

Exception: In buildings with only residential 
occupancies not more than six switches or sets 
of circuit-breakers, or a combination of not 
more than six switches and sets of circuit 
breakers, mounted in a single enclosure, in a 
group of separate enclosures, or in or on a 
switchboard shall be allowed. There shall be 
not more than six sets of disconnects per 
service grouped in any one location. A single 
circuit breaker or set of fuses shall be provided 
for each dwelling unit. 



10 



1/01/2008 



2007 SAN FRANCISCO ELECTRICAL CODE 



250.50-250.64 



ARTICLE 250 — GROUNDING 

250.50. Revise the first paragraph of this section as 
follows: 

250.50 Grounding Electrode System. All grounding 
electrodes as described in 250.52(A)(1) through (A)(6) 
that are present at each building or structure served 
shall be bonded together to form the grounding 
electrode system. A concrete encased electrode as 
defined by Section 250.52(A)(3) shall be installed at 
each new building or structure, and for existing 
buildings or structures when a new or replacement 
foundation or footing with a perimeter length of 6.0 
m (20 ft) or more is installed. Where none of these 
electrodes exist, one or more of the grounding 
electrodes specified in 250.52(A)(4) through (A)(7) 
shall be installed and used. 



be in rigid metal conduit, intermediate metal conduit, 
rigid nonmetallic conduit, electrical metallic tubing, or 
cable armor. Grounding electrode conductors smaller 
than 6 AWG shall be in rigid metal conduit, 
intermediate metal conduit, rigid nonmetallic conduit, 
electrical metallic tubing, or cable armor. Exposed 
grounding electrode conductors or cable armor 
shall not be installed on the outside of a building or 
structure. 6 AWG or smaller grounding electrode 
conductors shall not be installed exposed below 5'. 



Exception: Concrete-encased electrodes of 
existing buildings or structures shall not be 
required to be part of the grounding electrode 
system where the steel reinforcing bars or rods are 
not accessible for use without disturbing the 
concrete. 

250. 64(A). Revise this section as follows: 

250.64(A). Aluminum or Copper-Clad Aluminum 
Conductors. Bare aluminum or copper-clad aluminum 
grounding conductors shall not be used where in direct 
contact with masonry or the earth or where subject to 
W corrosive conditions. Aluminum or copper-clad 
1^ aluminum grounding conductors shall not be installed 
on the outside of a building or structure. 

250. 64(B). Revise this section as follows: 

250.64(B) Securing and Protection Against Physical 
Damage. Where exposed, a grounding electrode 
conductor or its enclosure shall be securely fastened to 
the surface on which it is carried. A 4 AWG or larger 
copper or aluminum grounding electrode conductor 
shall be protected where exposed to physical damage. 
A 6 AWG grounding electrode conductor that is free 
from exposure to physical damage shall be permitted to 
be run along the surface of the building construction 
without metal covering or protection where it is 
secureiy fastened to the construction; otherwise, it shall 



1/01/2008 



11 



300.3-334.10 



2007 SAN FRANCISCO ELECTRICAL CODE 



Chapter 3. Wiring Methods and Materials 



ARTICLE 300 — WIRING METHODS 

300.3(C)(1). Revise this section as follows: 

300.3(C) Conductors of Different Systems. 

( 1 ) 600 Volts, Nominal or Less. Conductors 
■► of circuits from separately derived systems, from 
separate services, or from separate utility meters 
shall not be permitted to occupy the same 
equipment wiring enclosure, cable or raceway with 
conductors from other systems, services, or meters. 
All conductors shall have an insulation rating equal to 
at least the maximum circuit voltage applied to any 
conductor within the enclosure, cable, or raceway. 

Exception No 1: For solar photovoltaic systems in 
accordance with Section 690.4(B). 

Exception No 2: Conductors installed in 
accordance with Section 700.9. 

Exception No. 3: Class 1, 2 or 3 conductors 
installed in accordance with Article 725. 



Exception No 4: conductors in auxiliary gutters 
connected to the separately derived systems, 
service equipment, or meter bank. 

(FPN): See Section 725.55(A) for Class 2 and 
Class 3 circuit conductors. 

300.4(G). Add a new section as follows: 

300.4(G). Subject to Physical Damage. Premises 
wiring systems installed less than 2.44 m (8 feet) 
above a walking surface or finished floor are 
considered subject to physical damage. 



ARTICLE 320 - ARMORED CABLE: TYPE AC 

320. 108. Revise this section as follows: 

320.108. Equipment Grounding. Type AC cable shall 
provide an adequate path for equipment grounding as 



required by Section 250.4(A)(5) and 250.4(B)(4). An 
equipment grounding conductor, sized as required 
by Table 250.122, shall be provided within the cable 
assembly. 



i^iRTICLE 330 -METAL-CLAD CABLE: 
TYPEMC 

330. 12. Add item (5) as follows: 

330.12. Uses Not Permitted. 

(5) Wet locations unless listed and identified 
for direct burial applications. 

330.40. Revise this section as follows: 

330.40. Boxes and Fitting. Fittings used for connecting 
Type iVlC cable to boxes, cabinets, or other equipment 
shall be listed and identified for such use. An 
approved insulating bushing shall be installed 
between the conductors and the sheath of MC Cable 
where the manufacturer recommends their use. 

330.108. Revise this section as follows: 

330.108. Equipment Grounding. Where Type MC 
cable is used for equipment grounding, it shall comply 
with 250.118(10) and 250.122. An equipment 
grounding conductor, sized as required by Table 
250.122, shall be provided within the cable 
assembly. 



ARTICLE 334 - NONMETALLIC-SHEATHED 
CABLE: TYPES NM, NMC, AND NMS 

334.10. Revise Item (2) as follows: 

334.10. Uses permitted. 

(2) Multi-family dwellings permitted to be of 
Types in, IV, and V construction not exceeding 4 
stories as defined by the San Francisco Building 
Code except as prohibited in 334.12. 



12 



1/01/2008 



2007 SAN FI^NCISCO ELECTRICAL CODE 



334.12-358.10 



334.12. Add Item (11) as follows: 

334.12. Uses Not Permitted. 

(11) In any nonresidential structure or 
occupancy. 

ARTICLE 340 - UNDERGROUND FEEDER 
AND BRANCH-CIRCUIT CABLE: TYPE UF 

340.10. Revise Item (1) as follows: 

340.10. Uses Permitted. 

(1) For use underground in systems not 
exceeding 50 volts, including direct burial in the earth. 
For underground requirements see 300.5. 

ARTICLE 348 - FLEXIBLE METAL CONDUIT: 
TYPE FMC 

348.10, Revise this section as follows: 

348.10. Uses Permitted. FMC shall be permitted to be 

^ used in concealed locations and where necessary for 

flexibility in lengths not to exceed 1.829 m (6 feet). 

348. 12. Revise Item (1) as follows: 

348.12. Uses Not Permitted. 

■^ (1) In wet locations. 



ARTICLE 350 - LIQUIDTIGHT FLEXIBLE 
METAL CONDUIT: TYPE LFMC 

350. 10. Revise the first sentence as follows: 

350.10. Uses Permitted. LFMC shall be permitted to 
be used in exposed locations in lengths not to exceed 
1.829 m (6 feet) or concealed locations as follows: 



ARTICLE 352 - RIGID NONMETALLIC 
CONDUIT: TYPE RNC 



352.10. Revise Item (A) as follows: 

352.10. Uses Permitted. 

(A) Concealed. RNC shall be permitted 
embedded in concrete walls, floors, and ceilings. The 
conduit may emerge not more than 3" from the 
concrete within wiring enclosures, otherwise metal 
raceways shall be provided where emerging from 
the concrete. 

ARTICLE 356 - LIQUIDTIGHT FLEXIBLE 
NONMETALLIC CONDUIT: TYPE LFNC 

356.10. Revise the first sentence of this section as 
follows: 

356.10. Uses Permitted. LFNC shall be permitted to 
be used in exposed or concealed locations for systems 
not exceeding 50 volts for the following purposes: 

356. 12. Revise item 4 of this section as follows: 

356.12. Uses Not Permitted. 

(4) Where the operating voltage of the 
contained conductors is in excess of 50 volts, nominal ^ 
except as permitted in 600.32(A). 

ARTICLE 358 - ELECTRICAL METALLIC 
TUBING: TYPE EMT 

358.10(B). Add a second paragraph as follows: 

358.10(B). Corrosion Protection. 

Where EMT emerges from concrete in a damp 
or wet location, it shall be protected against 
corrosion at the point of emergence by wrapping of 
PVC tape, or by other approved means. 



1/01/2008 



13 



358.12-388.12 

358. 12. Add Item (7) as follows: 
358.12. Uses Not Permitted 

(7) In concrete slabs on grade. 

ARTICLE 362- ELECTRICAL NONMETALLIC 
TUBING: TYPE ENT 

362.10. Revise Item 6 and delete Items 1, 2, 5, 7, and 
8 as follows: 

362.10. Uses Permitted. 

W (1) Reserved. 

^ (2) Reserved. 

1^ (4) Reserved. 

■^ (5) Reserved. 

(6) Encased in poured concrete, or 
embedded in a concrete slab on grade where ENT is 
placed on sand or approved screenings, provided 
fittings identified for this purpose are used for 
connections. Metal raceways shall be provided 
where emerging from the concrete. 



2007 SAN FRANCISCO ELECTRICAL CODE 

ABTICLE 388- SURFACE NONMETALLIC 
RACEWAYS 

388. 12. Revise Item (3) as follows: 

388.12. Uses Not Permitted. 

(3) Where the voltage is 50 volts or more ^ 
between conductors. ■^ 



^ 
* 



(7) Reserved. 

(8) Reserved. 



ARTICLE 378- NONMETALLIC WIREWAYS 

378.12(6). Add Item (6) as follows: 

378.12(6). Uses Not Permitted. 

(6) Where the voltage of the contained 
conductors is in excess of 50 volts. 



14 



1/01/2008 



2007 SAN FRANCISCO ELECTRICAL CODE 410.16-411.4 

Chapter 4. Equipment for General Use 

ARTICLE 410 - LUME^AIRES (LIGHTING (2) Installed using wiring supplied by a 

FIXTURES), LAMPHOLDERS, AND LAMPS listed Class 2 power source and installed in accordance 



with 725.52. 



410.16(C). Revise this section as follows: 

(C) Suspended Ceilings. Framing members of 
suspended ceiling systems used to support luminaires 
(fixtures) shall be securely fastened to each other and 
shall be securely attached to the building structure at 
appropriate intervals. Luminaires (fixtures) shall be 
securely fastened to the ceiling framing member by 
mechanical means, such as bolts, screws, or rivets. 
Listed clips identified for use with the type of ceiling 
framing member(s) and luminaires [fixture(s)] shall 
also be permitted. All luminaires (fixtures) or 
luminaire outlets supported by suspended ceiling 
systems shall have supplemental support wires 
(minimum #12 gauge) connected from the fixture 
housing or fixture support bracket to the structure 
above. Recessed lighting fixtures measuring 610 
mm (2 feet) nominal or larger in any dimension 
shall have two (minimum #12 gauge) support wires. 
See IBC Section 803.9.1.1 and ASTM standards 
C635 and C636. 

Exception: Supplemental support wires shall 
not be required when listed clips identified to 
be used without supplemental ceiling wires in 
compliance with IBC Section 803.9.1.1 are 
installed. 



ARTICLE 411 - LIGHTING SYSTEMS 
OPERATING AT 30 VOLTS OR LESS 

411.4. Revise Item (A) as follows: 

4 1 1 .4. Locations Not Permitted. 

(A) Where concealed or extended through a 
building wall, floor, ceiling, or suspended ceiling, 

unless permitted in (1) or (2): 

(1) Installed using any of the wiring 
methods specified in Chapter 3 . 



1/01/2008 15 



2007 SAN FRANCISCO ELECTRICAL CODE 



Chapter 5. Special Occmpancies 



No San Francisco Electrical Code Amendments. 



16 1/01/2008 



2007 SAN FRANCISCO ELECTRICAL CODE 645.5 

Chapter 6. Special Equipment 



ARTICLE 645 -INFORMATION 
TECHNOLOGY EQUIPMENT 



645.5(D). Revise Item (2) as follows: 

645.5(D). Under Raised Floors 

(2) The branch-circuit supply conductors to 
receptacles or field-wired equipment are in rigid metal 
■^ conduit, intermediate metal conduit, electrical metallic 
^ tubing, metal wireway, nonmetallic wireway, surface 
metal raceway with metal cover, nonmetallic surface 
raceway, flexible metal conduit, liquidtight flexible 
metal conduit, or liquidtight flexible nonmetallic 
conduit. Type MI cable. Type MC cable, or Type AC 
cable. These supply conductors shall be installed in 
accordance with the requirements of Section 300.1 1. 



1/01/2008 17 



700.12-760.72 



2007 SAN FRANCISCO ELECTRICAL CODE 



Chapter 7. Special Conditions 



ARTICLE 700 - EMERGENCY SYSTEMS 

700. 12(F). Revise the last paragraph of this section as 
follows: 

700.12(F). Unit Equipment. 

Unit equipment shall be permanently fixed in 
place (i.e., not portable) and shall have all wiring to 
each unit installed in accordance with the requirements 
of any of the wiring methods in Chapter 3. Flexible 
^ cord-and-plug connection shall not be permitted. The 
branch circuit feeding the unit equipment shall be the 
same branch circuit as that serving the normal lighting 
in the area and connected ahead of any local switches. 
The branch circuit that feeds unit equipment shall be 
clearly identified at the distribution panel. Emergency 
luminaires (illumination fixtures) that obtain power 
from a unit equipment and are not part of the unit 
equipment shall be wired to the unit equipment as 
required by Section 700.9 and by one of the wiring 
methods of Chapter 3 . 

700. 16. Revise the first paragraph of this section as 
follows: 

700.16. Emergency Illumination. Emergency 
illumination shall include all required means of egress 
lighting, illuminated exit signs, and all other lights 
specified as necessary to provide required illumination. 
Emergency illumination shall be provided at the 
location of transfer switches, switchboards and 
panelboards that supply emergency and legally 
required stand-by loads. 



ARTICLE 760 - FIRE ALARM SYSTEMS 

760.25. Revise the first paragraph of this section as 
follows: 

760.25. NPLFA Circuit Wiring Methods. 

Installations of non-power-limited fire alarm circuits 
shall be in accordance with 1 10.3(B), 300.1 1, 300.15, 
300.17, and other appropriate articles of Chapter 3. 
Conductors shall be installed in metallic raceways 
or concrete-encased nonmetallic raceways. 



Exception No. 1 : As provided in Sections 760.26 
tlirough 760.30. ^ 

760.52(A). Revise this section as follows: 

760.52(A). NPLFA Wiring Methods and Materials. 
Installation shall be in accordance with 760.25, and 
conductors shall be solid or stranded copper. 

Exception No. 1: The derating factors given in 
310.15(B)(2)(a) shall not apply. 

Exception No. 2: Conductors and multiconductor 
cables described in and installed in accordance 
vdth 760.27 shall be permitted. ^ 

Exception No. 3: Power-limited circuits shall be 
permitted to be reclassified and installed as 
nonpower-limited circuits if the power-limited fire 
alarm circuit markings required by 760.42 are 
eliminated and the entire circuit is installed using 
the wiring methods and materials in accordance 
with Part II, Non-Power-Limited Fire Alarm 
Circuits. 

FPN: Power-limited circuits reclassified and 
installed as nonpower-limited circuits are no 
longer power-limited circuits, regardless of the 
continued connection to a power-limited source. 

760.52(B). Revise this section as follows: 

760.52(B). PLFA Wiring Methods and Materials. 
Power-limited fire alarm conductors and cables 
described in 760.82 shall be installed in metallic 
raceway in accordance with 760.25. Devices shall be 4* 
installed in accordance with 1 10.3(B), 300. 11 (A), and 
300.15. 

760. 72. Add the following new section: 

760.72. System Requirements. 

(A) Supervising Station Fire Alarm Systems. 
Supervising station fire alarm system wiring 
installed within or on buildings shall be installed in 
metallic raceways. 



1/01/2008 



2007 SAN FRANCISCO ELECTRICAL CODE 760.72 



Exception: Communication conductors 
installed entirely within a dedicated telephone 
equipment room, switchboard area or fire 
control room. 

(B) Source of Power. The circuit supplying the 
fire warning system may be connected to either the 
line or load side of the service disconnect. Circuits 
shall be protected by means of an externally 
operated fused safety switch or a circuit breaker 
either in a separate enclosure or within a 
switchboard entirely separate from other circuit 
breakers. The switch and/or circuit breaker shall 
be clearly labeled and locked in the on position. 

Exception: When connected to a circuit 
supplied by an emergency generator, or when 
monitored by a required 24-hour agency, a fire 
warning system equipped with a standby 
battery may be provided. 



1/01/2008 



19 



2007 SAN FRANCISCO ELECTRICAL CODE 



Chapter 8. Communications Systems 

No San Francisco Electrical Code Amendments 



20 1/01/2008 



2007 SAN FRANCISCO ELECTRICAL CODE 



Chapter 9. Tables and Examples 



No San Francisco Electrical Code Amendments. 



]/0]/2008 21 



2007 SAN FRANCISCO ELECTRICAL CODE 



[This page intentionally left blank] 



22 ' 1/01/2008 



2007 SAN FRANCISCO ELECTRICAL CODE 



INDEX 



ELECTRICAL CODE INDEX 



-A- 

ADMINISTRATrVE BULLETINS, 89.124 

ALARMS (See FIRE ALARM SYSTEMS) 

ALUMINUM (See GROUNDING) 

ARMORED CABLE (See CABLE) 

-B- 

BOARD OF EXAMINERS 

Administration, 89.129 

BRANCH-CIRCUIT, FEEDER, AND SERVICE 
CALCULATIONS, Article 220 

Determining existing loads, 220.87(1) 

BRANCH CIRCUITS, Article 210 
Calculation 

Determining existing loads, 220.87(1) 
Information technology; connecting 
cables, 645.5 
Insulation; color code required, 210.5(C) 
Ungrounded conductors, 2 1 . 5 (C) 



CABLE 

Armored cable: Type AC, Article 320 

Grounding, 320.108 
Armored cable: Type MC, Article 330 

Boxes, 330.40 

Fittings, 330.40 

Grounding, 330.108 

Uses not permitted, 330.12 
Information technology equipment, 645.5 
Nonmetallic-sheathed cable: Types NM, NMC, 
and NMS, Article 334 

Nonresidential structure or 
occupancy, 334.12 

Uses not permitted, 334.12 

Uses permitted, 334.10 
Optical fiber cables and raceways. Article 770 



CABLE (Cont'd) 

Underground feeder and branch-circuit 
cable: Type UF, Article 340 
Uses permitted, 340.10(1) 

CIRCUITS (See BRANCH CIRCUITS) 

CODE RULINGS, 89.124 

COLOR CODES, 210.5 

COMMUNICATIONS SYSTEMS, Chapter 8 

CONDUCTORS OF DIFFERENT SYSTEMS (See 
WIRING METHODS) 

CONDUITS 

Flexible metal conduit: Type FMC, Article 348 

In wet locations, 348.12(1) 

Uses not permitted, 348.12 

Uses permitted, 348.10(B) 
Information technology equipment, 645.5 
Liquid-tight flexible metal conduit: Type 
LFMC, Article 350 

Uses permitted, 350.10 
Liquid-tight flexible nonmetallic conduit. Type 
LFNC, Article 356 

Uses not permitted, 356.12 

Uses permitted, 356.10 
Rigid nonmetallic conduit. Type RNC, Article 352 

Uses permitted, 352.10 

COPPER (See GROUNDING) 
-D- 

DEFINITIONS, Article 100 

Different system. Article 100 

Opening, Article 100 

Scope, Article 100 

Subject to physical damage. Article 100 

DEPARTMENT OF BUILDING INSPECTION 

Administration, 89.117, 89.119, 89.120 
Duties, 89.117, 89.119, 89.120 



1/01/2008 



I-l 



INDEX 



2007 SAN FRANCISCO ELECTRICAL CODE 



DISCONIVECTION OF SERVICE (See GENERAL 
CODE PROVISIONS and SERVICE 
DISCONNECTION) 



E 



ELECTRICAL INSTALLATION 
REQUIREMENTS, Article 1 10 

Clear spaces, 110.26(B) 

Headroom, 110.26(E) 

High-leg marking, 110.15 

Working space, 1 10.26(A) 

ELECTRICAL METALLIC TUBING 

Type EMT, Art. 358 
Corrosion protection, 358.10 
Uses not permitted, 358.12 

ELECTRICAL NONMETALLIC TUBING 

Generally, Article 362 
Uses permitted, 362.10 

ELECTRICAL SURVEY (See GENERAL CODE 
PROVISIONS) 

ELECTRODE CONDUCTOR OR SYSTEM (See 
GROUNDING) 

EMERGENCY SYSTEMS, Article 700 
Emergency illumination, 700.16 
Equipment permanently fixed, 700.12(F) 
Unit equipment, 700.12(F) 

EMERGENCY WORK PERMITS, 89.17 

-F- 

FEEDERS, Article 220 
Calculation 

Determining existing loads, 220.87(1) 
Identification of conductor with higher voltage 
to ground, 230.56 
Wiring and protection, 250.64 

FEES 

Administration, 89.117, 89.121, 89.122, 

89.123,89.127 
Appeal; investigative fee, 89.123 



FEES (cont'd) 

Inspections, 89.123, 89.127 
Investigations, 89.123 
Permits, 89.123 
Survey; electrical, 89.128 

FINES (See VIOLATIONS) 

FIRE ALARM SYSTEMS, Article 760 
^>^PLFA circuit wiring methods, 760.25 
NPLFA wiring methods and 
materials, 760.52(A) 
PLFA wiring methods and materials, 760.52(B) 
System requirements, 760.72 

FITTINGS (See CABLE) 

FLEXIBLE METAL CONDUITS (See CONDUITS) 

-G- 

GENICRAL CODE PROVISIONS, Article 89 
Administrative bulletins, 89.124 
Alternate materials, design and methods of 

construction, 89.117 
Appeals; investigative fees, 89.123 
Board of Examiners, 89.129 
Building Official, powers and duties, 89.124 
Change in occupancy, 89. 1 1 8 
Code revisions, 89.124 
Code Rulings, 89.124 
Department of Building Inspection, 89.1 17, 

89.119,89.120 
Disconnection; imminent hazard, 89.124 
Electrical energy 

Temporary use, 89,124 
Unlawful use or concealment, 89.127 
Electrical survey, 89.128 
Emergency work, 89.120 
Exemption from permits, 89.121 
Hazards; imminent, 89. 1 24 
Fees, 89.117, 89.121, 89.122, 89.123, 89.127 
Inspection, 89.123, 89.127 
Liability, 89.120 
Maintenance, 89.1 16 
Modifications, 89.119 
Non-liability of city, 89. 1 20 
Notices, 89.124,89.127 



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INDEX 



GENERAL CODE PROVISIONS (cont'd) 
Permits 

Application, 89.120 

Emergency work, 89.120 

Exemptions, 89.121 

Homeowners, 89.120 

Illegal use, 89.120 

Issuance, 89.122 

Required, 89.120 
Records, 89.117, 89.119 
Right of entry, 89.124 
Scope, Art. 100 
Stop orders, 89.124 
Suppression, 89.115 
Survey; electrical, 89.128 
Title, 89.101.1 

Unsafe buildings or structures, 89.126 
Violation, 89.122, 89.124, 89.125, 89.126 
Work exempt from permits, 89.121 

GROUNDING, Article 250 

Aluminum or copper-clad aluminum 

conductors, 250.64(A) 
Exposed grounding electrode conductors or cable 

armor prohibited on outside of building or 

structure, 250.64(B) 
Grounding electrode conductor, 250.64(B) 
Grounding electrode system, 250.50 



H 



HOMEOWNERS' PERMITS (See GENERAL 
CODE PROVISIONS) 



-I 



INFORMATION TECHNOLOGY EQUIPMENT, 

Article 645 

Supply conductors, 645.5(D) 
Under raised floors, 645.5(D)(2) 

INSPECTIONS 

Fees, 89.123, 89.127 
Notices, 89.127 

INVESTIGATTVE FEE, 89.123 



LAMPHOLDERS (See LUMINAIRES 
(LIGHTING FIXTURES), LAMPHOLDERS, 

AND LAMPS) 

LAMPS (See LUMINAIRES (LIGHTING 
FIXTURES), LAMPHOLDERS, AND LAMPS) 

LIABILITY, 89.120 

LIGHTING FIXTURES (See LUMINAIRES 
(LIGHTING FIXTURES), LAMPHOLDERS, 
AND LAMPS 

LIGHTING SYSTEMS OPERATING AT 30 
VOLTS OR LESS, Article 41 1 

Emergency illumination, 700.16 

Locations not permitted, 41 1.4 

LIQUIDTIGHT CONDUITS (See CONDUITS) 

LUMINAIRES (LIGHTING FIXTURES), 
LAMPHOLDERS, AND LAMPS, Article 410 
Emergency illumination, 700.16 
Supplemental support wires, 410.16(C) 
Suspended ceilings, 410.16(C) 



M 



METAL CONDUITS (See CONDUITS) 

METAL WIREWAYS 

Armored cable. Articles 320, 330 
Electrical metallic tubing, Article 358 
Flexible metal conduit, Article 348 
Liquidtight flexible metal conduit. Article 350 



-N 



NONMETALLIC CABLE (See CABLE) 

NONMETALLIC WIREWAYS, Article 378 
Uses not permitted, 378.12 
Voltage 50 volts or more between 
conductors, 378.12(6) 



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1-3 



INDEX 



2007 SAN FRANCISCO ELECTRICAL CODE 



NOTICE (See GENERAL CODE PROVISIONS) 

-P- 

PENALTIES (See VIOLATIONS) 

PERMITS (See ADMINISTRATION) 

-R- 

RACEWAYS 

Fire alarm systems; raceways, 760.25 

RECORDS (See GENERAL CODE PROVISIONS) 

RIGHT OF ENTRY (See GENERAL CODE 
PROVISIONS) 



SERVICE CONDUCTOR 

With the higher voltage to ground, 230.56 

SERVICE DISCONNECTION 

Maximum number, 230.71(A) 
Types permitted, 230.71(A) 

STOP WORK ORDERS (See GENERAL CODE 
PROVISIONS) 

SUPPLY CONDUCTORS (See INFORMATION 
TECHNOLOGY EQUIPMENT) 

SURFACE NONMETALLIC RACEWAYS, 

Article 388 

Uses not permitted, 388.12 
Voltage 50 volts or more between 
conductors, 388.12(3) 

SURVEY; ELECTRICAL (See GENERAL CODE 
PROVISIONS) 

-T- 

TABLES AND EXAMPLES, Chapter 9 



-U- 

UNTERGROUND FEEDERS AND BRANCH- 
CIRCUITS (See FEEDERS or BRANCH- 
CIRCUITS) 

UNSAFE BUILDINGS (See GENERAL CODE 
PROVISIONS) 

-V- 

VIOLATIONS, 89.122, 89.123, 89.124, 89.125, 
89.126 

-W- 

WIREWAYS, Article 378 
Nonmetallic, Article 378 

WIRinVG METHODS, Articles 230 and 300 
Conductors of different systems, 300.3(c)(1) 
For 600 Volts, nominal, or less, 230.43, 
300.3(c), (1) 
Raceway size, 230.43 
Subject to physical damage, 300.4(G) 



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